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POHttpTransportSE requestDump gives NullPointerException
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  1. POHttpTransportSE requestDump gives NullPointerException
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    copied!<p>I'm trying to access a <code>webservice</code> in Android via <code>Ksoap2</code> for Android. </p> <p>The <code>SoapObject</code> is created OK, the S.O.P of the <code>bodyOut</code> outputs the desired strings. But when I do a <code>requestDump</code> of the <code>HttpTransportSE</code> object I create to make the call, a <code>NullPointerException</code> happens. In other words, the transport object is null. How can this happen?</p> <p>Web Service is at <a href="http://srilanka.lk:9080/services/CropServiceProxy?wsdl" rel="nofollow">http://srilanka.lk:9080/services/CropServiceProxy?wsdl</a> </p> <p><strong>This service works very well with SoapUI.</strong> </p> <p><strong>SoapUI Request:</strong></p> <pre><code>&lt;soap:Envelope xmlns:soap="http://www.w3.org/2003/05/soap-envelope" xmlns:v1="http://schemas.icta.lk/xsd/crop/handler/v1/"&gt; &lt;soap:Header/&gt; &lt;soap:Body&gt; &lt;v1:getCropDataList&gt; &lt;v1:code&gt;ABK&lt;/v1:code&gt; &lt;/v1:getCropDataList&gt; &lt;/soap:Body&gt; &lt;/soap:Envelope&gt; </code></pre> <p><strong>SoapUI Response:</strong></p> <pre><code>&lt;soapenv:Envelope xmlns:soapenv="http://www.w3.org/2003/05/soap-envelope"&gt; &lt;soapenv:Body&gt; &lt;ns1:getCropDataListResponse xmlns:ns1="http://schemas.icta.lk/xsd/crop/handler/v1/"&gt; &lt;ns1:cropInfo&gt; &lt;ns1:name&gt;Ambul Kesel&lt;/ns1:name&gt; &lt;ns1:price&gt;35.0&lt;/ns1:price&gt; &lt;ns1:location&gt;Dambulla&lt;/ns1:location&gt; &lt;/ns1:cropInfo&gt; &lt;ns1:cropInfo&gt; &lt;ns1:name&gt;Ambul Kesel&lt;/ns1:name&gt; &lt;ns1:price&gt;40.0&lt;/ns1:price&gt; &lt;ns1:location&gt;Dambulla&lt;/ns1:location&gt; &lt;/ns1:cropInfo&gt; &lt;/ns1:getCropDataListResponse&gt; &lt;/soapenv:Body&gt; &lt;/soapenv:Envelope&gt; </code></pre> <p><strong>Client Side Complex Type <code>KvmSerializable</code> implementation:</strong></p> <pre><code>public class CropInfo implements KvmSerializable { private String name; private float price; private String location; @Override public Object getProperty(int arg0) { switch (arg0){ case 0: return name; case 1: return price; case 2: return location; default: return null; } } @Override public int getPropertyCount() { return 3; } @Override public void getPropertyInfo(int arg0, Hashtable arg1, PropertyInfo arg2) { switch (arg0){ case 0: arg2.type = PropertyInfo.STRING_CLASS; arg2.name = "Name"; break; case 1: arg2.type = Float.class; arg2.name = "Price"; break; case 2: arg2.type = PropertyInfo.STRING_CLASS; arg2.name = "Location"; break; default: break; } } @Override public void setProperty(int arg0, Object arg1) { switch(arg0){ case 0: name = arg1.toString(); break; case 1: price = Float.parseFloat(arg1.toString()); case 2: location = arg1.toString(); default: break; } } } </code></pre> <p><strong>Web Service Call:</strong></p> <pre><code>public void btnOnClick(View v){ String NAMESPACE = "http://schemas.icta.lk/xsd/crop/handler/v1/"; String URL = "http://220.247.225.202:9080/services/CropServiceProxy.CropServiceProxyHttpSoap12Endpoint"; String method_name = "getCropDataList"; String SOAP_ACTION = "http://schemas.icta.lk/xsd/crop/handler/v1/getCropDataList"; SoapObject soap_request = new SoapObject(NAMESPACE, method_name); soap_request.addProperty("code", "ABK" ); SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER12); envelope.setOutputSoapObject(soap_request); envelope.addMapping(NAMESPACE, "cropInfo", CropInfo.class); //envelope.dotNet=true; Marshal floatMarshal = new MarshalFloat(); floatMarshal.register(envelope); System.out.println("body out : " + envelope.bodyOut.toString()); //AndroidHttpTransport http_transport = new AndroidHttpTransport(URL); HttpTransportSE http_transport = new HttpTransportSE(URL); try { //NullPointerException HERE System.out.println(http_transport.requestDump); http_transport.call(SOAP_ACTION, envelope); //because we should expect a vector, two kinds of prices are given Vector&lt;CropInfo&gt; result_array = (Vector&lt;CropInfo&gt;)envelope.getResponse(); if(result_array != null){ for (CropInfo current_crop: result_array){ System.out.println(current_crop.getName()); System.out.println(Float.toString(current_crop.getPrice())); } } } catch (Exception e) { e.printStackTrace(); answer.setText("error caught"); //System.out.println(http_transport.responseDump); } // String result_string[] = (String[])result; //answer.setText("returned"); } </code></pre> <p>Can anyone explain this?</p>
 

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